<template>
<div>
  <el-form :model="ruleForm" status-icon :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
    <el-form-item label="密码" prop="pass">
      <el-input type="password" v-model="ruleForm.pass"></el-input>
    </el-form-item>
    <el-form-item label="确认密码" prop="checkPass">
      <el-input type="password" v-model="ruleForm.checkPass"></el-input>
    </el-form-item>
    <el-form-item label="年龄" prop="age">
      <el-input v-model.number="ruleForm.age"></el-input>
    </el-form-item>
    <el-form-item>
      <el-button type="primary" @click="submitForm('ruleForm')">提交</el-button>
      <el-button @click="resetForm('ruleForm')">重置</el-button>
    </el-form-item>
  </el-form>
</div>
</template>

<script>
export default {
  name: "formSubmit",
  data() {
    // var checkAmount = (rule, value, callback)=>{
    //   if (!value){
    //     return callback(new Error('请输入需求数量'))
    //   }
    //   setTimeout(()=>{
    //     var numReg = /^[0-9]*$/
    //     if (!numReg.test(value)){
    //       callback(new Error('只能输入整数'))
    //     }
    //   },100)
    // }
    // var checkPrice = (rule, value, callback)=>{
    //   if (!value){
    //     return callback(new Error('请输入价格'))
    //   }
    //   setTimeout(()=>{
    //     var priceReg = /^\d+(\.?\d{0,4})$/
    //     // var priceReg = /^\d*(\.?\d{0,4})/
    //     if (!priceReg.test(value)){
    //       callback(new Error('只可输入数字，小数点位数限制4位'))
    //     }
    //   },100)
    // }
    var checkAge = (rule, value, callback) => {
      if (!value) {
        return callback(new Error('年龄不能为空'));
      }
      setTimeout(() => {
        if (!Number.isInteger(value)) {
          callback(new Error('请输入数字值'));
        } else {
          if (value < 18) {
            callback(new Error('必须年满18岁'));
          } else {
            callback();
          }
        }
      }, 1000);
    };
    var validatePass = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请输入密码'));
      } else {
        if (this.ruleForm.checkPass !== '') {
          this.$refs.ruleForm.validateField('checkPass');
        }
        callback();
      }
    };
    var validatePass2 = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请再次输入密码'));
      } else if (value !== this.ruleForm.pass) {
        callback(new Error('两次输入密码不一致!'));
      } else {
        callback();
      }
    };
    return {
      ruleForm: {
        pass: '',
        checkPass: '',
        age: ''
      },
      rules: {
        pass: [
          {validator: validatePass,  required: true, trigger: 'blur'}
        ],
        checkPass: [
          {validator: validatePass2, required: true, trigger: 'blur'}
        ],
        age: [
          {validator: checkAge, trigger: 'blur'}
        ]
      }
    };
  },
  methods: {
    submitForm(formName) {
      console.log(formName)
      this.$refs[formName].validate((valid) => {
        console.log(valid,1)
        if (valid) {
          alert('submit!');
        } else{
          //如果表单很长，定位一下位置
          setTimeout(()=>{
            var isError = document.getElementsByClassName("is-error")
            isError[0].querySelector('input').focus()
          },100)
          return false
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  }
}
</script>

<style scoped>

</style>